Abstract: Provided is a brake hydraulic device for a vehicle, including: a base body having a hydraulic pressure path for brake fluid formed therein; an electromagnetic valve; an electromagnetic coil; a pressure sensor; and a housing attached to the outer surface of the base body. The housing includes a peripheral wall part and an intermediate wall part partitioning a space inside the peripheral wall part into a front side and a rear side. A plurality of bus bars on the coil side to be electrically connected to the electromagnetic coil, and a plurality of bus bars on the sensor side to be electrically connected to the pressure sensor are embedded in the intermediate wall part. A hierarchy region where the bus bars on the coil side and the bus bars on the sensor side are positioned in a hierarchy state with each other in the front-rear direction is provided.

Abstract: A braking device includes a guide piston which surrounds the outer periphery of a rod part of a second slave piston, a cup seal which is mounted on the second slave piston, and a seal member which is provided on the guide piston. The second slave piston includes an enlarged diameter portion which comes into contact with an axial-direction surface of the guide piston when the second slave piston is in the initial position, and the enlarged diameter portion is provided with a cut-out section which extends in the internal diameter direction of the second slave piston.

Abstract: Provided is a brake hydraulic device for a vehicle, including: a base body having a hydraulic pressure path for brake fluid formed therein; an electromagnetic valve which opens and closes the hydraulic pressure path; an electromagnetic coil which drives the electromagnetic valve; and a housing attached to the outer surface of the base body and having a housing chamber for accommodating the electromagnetic valve and the electromagnetic coil. The housing includes a peripheral wall part having openings formed on a front side and a rear side thereof, and an intermediate wall part partitioning a space inside the peripheral wall part into a front side and a rear side. The housing chamber is provided on the rear side of the intermediate wall part, and recessed portions and a projecting portion is formed on a front surface of the intermediate wall part.

Abstract: The present invention provides an input device of a vehicle brake system, the input device being a separate unit from an electric brake actuator, the electric brake actuator for generating a first fluid pressure, the input device of the vehicle brake system comprising: a master cylinder for generating a second fluid pressure; a stroke simulator for applying a simulated reaction force, the stroke simulator and the master cylinder forming an attachment body, with the stroke simulator disposed in communication with the master cylinder; and a component storage box provided on the attachment body for a component of either one of the master cylinder and the stroke simulator, wherein the attachment body has a vent hole with a first end in communication with the component storage box and a second end in communication with a space formed before a surface of a dashboard having the input device mounted thereon.

Abstract: An electric brake actuator (motor cylinder apparatus) for generating hydraulic brake pressure on the basis of at least an electric signal corresponding to brake manipulation by an operator, which is incorporated in a vehicle brake system with an input apparatus being arranged separately from the electric brake actuator and receiving the brake manipulation. A reservoir reserving brake fluid is attached to a cylinder body included in the electric brake actuator, and the ceiling of the reservoir is inclined from the axis of the cylinder body in correspondence with an arrangement of the main body inclined from the horizontal line.

Abstract: A vehicle brake hydraulic pressure control apparatus includes: a control unit into which a base body, a motor and a controller housing are unitized and in which the motor and the controller housing are disposed so as to hold the base body therebetween; and a support device interposed between a vehicle body and the control unit. The support device has a lower mount member fixed to a lower surface of the base body that becomes vertical when the control unit is mounted on the vehicle body and a bracket that connects the lower mount member with the vehicle body. A center of gravity of the control unit is situated on the base body. The lower mount member is supported by the bracket to be situated at an intersection point between a vertical line passing through the center of gravity and the lower surface of the base body.

Abstract: Disclosed is a braking device in which all multiple ports (for example, input ports (15c, 15d) and output ports (15a, 15b)) provided on a front surface portion (30) of a base (10) of a master cylinder (1), connector connection ports (23a, 24a) of connectors (23, 24) that electrically conducts an electrical part accommodated in a housing (20), and a pipe connection port (3c) to which a hose is connected of a reservoir (3) are arranged toward front of a vehicle when a starting device (A1) is assembled in the vehicle.

Abstract: A hydraulic-pressure generator including: primary and secondary pistons displaced corresponding to displacement of a brake pedal; a first pressure chamber communicating with a first hollow in the primary piston and generating in brake fluid hydraulic pressure corresponding to the displacement of the primary piston; a second pressure chamber communicating with a second hollow in the secondary piston and generating in the brake fluid hydraulic pressure corresponding to the displacement of the secondary piston; one or more first communication openings formed in a peripheral wall surrounding the first hollow; and second communication openings formed in a peripheral wall surrounding the second hollow. The flow rate of the brake fluid through the one or more first communication openings is different from the flow rate of the brake fluid through the second communication openings.

Abstract: An electric brake device includes a first slave piston which is housed in a cylinder body and generates hydraulic pressure in a first hydraulic chamber by moving forward, a motor which transmits a driving force to the first slave piston, and a restriction pin which is inserted and secured to the cylinder body in a direction perpendicular to an axial direction of the cylinder body and restricts a backward position of the first slave piston when a hydraulic pressure is applied from an outside to the first hydraulic chamber, wherein the restriction pin is inserted and secured to the cylinder mechanism in the direction perpendicular to the axial direction of the cylinder main body. Further, a clearance is formed between an inner peripheral wall of the cylinder body and a first groove portion and second groove portion which are formed on an outer surface of the restriction pin.

Abstract: A brake fluid pressure control device has a base unit. The base unit includes an inlet valve mounting hole, an outlet valve mounting hole, a reservoir hole, a cylinder hole, an inflow hole, a suction hole, and a discharge hole. A plunger is inserted into the cylinder hole. The inflow hole connects the outlet valve mounting hole and the reservoir hole. The suction hole connects the reservoir hole and the cylinder hole. The discharge hole connects the cylinder hole and the inlet valve mounting hole. The suction hole is inserted with a suction valve that allows only an inflow of the brake fluid into the cylinder hole. The discharge hole is inserted with a discharge valve that allows only a discharge of the brake fluid from the cylinder hole. The inflow hole and the suction hole are arranged to be substantially in parallel with each other.

Abstract: A flange 62 having motor mounting through holes 63 is provided on a motor 6, motor mounting holes 19 are provided on a base body 1, so that motor mounting screw 61 are passed through the motor mounting through hole 63 from a back surface 1b side so as to be screwed into the motor mounting holes 19 to fix the motor 6 to the base body 1. Housing mounting holes 83 are provided on a control housing 8, housing mounting through holes 17 are formed on the base body 1 so as to be offset from portions which are in abutment with the flange 62, so that housing mounting screws 81 are passed through the housing mounting through holes 17 from the back surface 1b side so as to be screwed into the housing mounting holes 83 to fix the control housing 8 to the base body 1.

Abstract: An electric connection structure of a solenoid valve drive assembly has a solenoid valve, a coil that drives the solenoid valve, and a housing in which the solenoid valve and the coil are located, so that a terminal of the coil and a terminal inside the housing are electrically connected to each other. In the electric connection structure, a coil urging part that urges the coil is provided between the housing and the coil, and the coil urging part has: a base portion to be attached to the housing, and an elastic portion that extends from the base portion to press the coil.

Abstract: A vehicle brake hydraulic pressure control apparatus includes: a control unit into which a base body, a motor and a controller housing are unitized and in which the motor and the controller housing are disposed so as to hold the base body therebetween; and a support device interposed between a vehicle body and the control unit. The support device has a lower mount member fixed to a lower surface of the base body that becomes vertical when the control unit is mounted on the vehicle body and a bracket that connects the lower mount member with the vehicle body. A center of gravity of the control unit is situated on the base body. The lower mount member is supported by the bracket to be situated at an intersection point between a vertical line passing through the center of gravity and the lower surface of the base body.

Abstract: The present invention provides an input device of a vehicle brake system, the input device being a separate unit from an electric brake actuator, the electric brake actuator for generating a first fluid pressure, the input device of the vehicle brake system comprising: a master cylinder for generating a second fluid pressure; a stroke simulator for applying a simulated reaction force, the stroke simulator and the master cylinder forming an attachment body, with the stroke simulator disposed in communication with the master cylinder; and a component storage box provided on the attachment body for a component of either one of the master cylinder and the stroke simulator, wherein the attachment body has a vent hole with a first end in communication with the component storage box and a second end in communication with a space formed before a surface of a dashboard having the input device mounted thereon.

Abstract: An electric brake actuator (motor cylinder apparatus) for generating hydraulic brake pressure on the basis of at least an electric signal corresponding to brake manipulation by an operator, which is incorporated in a vehicle brake system with an input apparatus being arranged separately from the electric brake actuator and receiving the brake manipulation. A reservoir reserving brake fluid is attached to a cylinder body included in the electric brake actuator, and the ceiling of the reservoir is inclined from the axis of the cylinder body in correspondence with an arrangement of the main body inclined from the horizontal line.

Abstract: A brake fluid pressure control device for a bar handle vehicle has a front wheel brake system which imparts a braking force to a front wheel and a rear wheel brake system which imparts a braking force to a rear wheel. At least one of the brake systems has a master cylinder which generates brake fluid pressure in accordance with an operation amount of a brake operation element, first and second wheel cylinders both of which impart the brake force on one of the front and rear wheels, a first hydraulic path which communicates the master cylinder with the first wheel cylinder, a second hydraulic path which is branched from the first hydraulic path and connected to the second wheel cylinder and a boosting unit which boosts the brake fluid pressure in the second wheel cylinder without boosting the brake fluid pressure in the first wheel cylinder.

Abstract: A vehicular brake hydraulic pressure control device has a first operation unit T1 including a first brake operation element; a first brake system K1 for braking a first wheel brake R corresponding to the first operation unit T1; and a first control valve unit A and B for controlling brake hydraulic pressure in the first brake system. In the device, the first operation unit T1 and the first brake system K1 are separated so as not to flow a brake fluid, and the device further comprises a brake fluid tank 30 having a reservoir function for supplying the brake fluid to the separated first brake system K1.

Abstract: A vehicle brake hydraulic pressure controller provided with a stroke simulator including a dummy cylinder includes a base member, a plurality of electromagnetic valves, a motor and pumps. The base member is constituted with a flow path in correspondence with a brake system. A plurality of the electromagnetic valves is attached to one face of the base member for controlling a flow of a brake fluid in the flow path. The motor is attached to other face constituting a back face side of the one face of the base member. The pumps are attached to a side face contiguous to the one face of the base member and are driven by the motor for delivering the brake fluid to the flow path. The dummy cylinder and the pumps are aligned at the base member with axis lines in a longitudinal direction being substantially in parallel with each other.

Abstract: A brake fluid pressure control device for a vehicle includes: a base body; reservoirs to store brake fluid in the base body; and a single lid member secured to the base body. The reservoir has a reservoir hole, a piston that slides inside the reservoir hole, and a spring that biases the piston. The lid member hermetically seals the reservoir holes. The lid member includes a plate member with which the springs make contact and a ring-shaped sealing member held between one face of the base body to which the plate member is secured and the other face of the plate member opposed to the one face to provide a sealing function. In the lid member, a screw hole is disposed outside a region surrounded by the sealing member and a communication passage communicating with the reservoir holes is provided inside the region.

Abstract: A brake fluid pressure control device has a base unit including: an inlet valve mounting hole; an outlet valve mounting hole; a reservoir hole; a cylinder hole into which a plunger is inserted to freely slide in the cylinder hole; an inflow hole that connects the outlet valve mounting hole and the reservoir hole; a suction hole that connects the reservoir hole and the cylinder hole; and a discharge hole that connects the cylinder hole and the inlet valve mounting hole, wherein the suction hole is configured to be inserted with a suction valve that allows only an inflow of the brake fluid into the cylinder hole, wherein the discharge hole is configured to be inserted with a discharge valve that allows only a discharge of the brake fluid from the cylinder hole, and wherein the inflow hole and the suction hole are arranged to be substantially in parallel with each other.